Adsorption and Surface Reaction of Ethylbenzene over Ferrosilicate with FeZSM-5 Structure

Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (3): 392.

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Adsorption and Surface Reaction of Ethylbenzene over Ferrosilicate with FeZSM-5 Structure

KAN Qiu-Bin¹, WU Zhi-Yun¹, YU Ji-Hong¹, PENG Shao-Yi¹, XU Yi-De², XIONG Guo-Xing², HUANG Jia-Sheng²

1. Department of Chemistry, Jilin University, Changehun, 130023;
2. Dalian Institute of Physical Chemistry, Academia Sinica, Dalian

Received:1992-06-02 Revised:1992-09-15 Online:1993-03-24 Published:1993-03-24

Abstract

Abstract: XPS, ESRand Mossbauer techniques were used to investigate the adsorption of ethylbenzene over FeZSM-5 zeolite catalyst.Astronger interaction between ethylbenzene and framework iron of FeZSM-5 is found, which results in a 0.7 eVchemical shift of Fe₂, binding energy towards a low value.Ethylbenzene molecule acting as a ligand could coordinate with the framework iron with coordination unsaturation to form a chemical bond.The study on the temperature programmed desorption and the surface reaction of ethylbenzene over FeZSM-5 further characterizes the catalytic active centers for ethylbenzene reactions.

Key words: ZSM-5, Ferrosilicate zeolite, Adsorption, Temperature programmed desorption

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KAN Qiu-Bin, WU Zhi-Yun, YU Ji-Hong, PENG Shao-Yi, XU Yi-De, XIONG Guo-Xing, HUANG Jia-Sheng. Adsorption and Surface Reaction of Ethylbenzene over Ferrosilicate with FeZSM-5 Structure[J]. Chem. J. Chinese Universities, 1993, 14(3): 392.

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Adsorption and Surface Reaction of Ethylbenzene over Ferrosilicate with FeZSM-5 Structure

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